This character is a Otro símbolo and is mainly used in the Braille script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+2889 forms with similar adjacent characters prevents a line break inside it.
El Wikipedia tiene la siguiente información acerca de este punto de código:
The Braille pattern dots-14 ( ⠉ ) is a 6-dot or 8-dot braille cell with the two top dots raised. It is represented by the Unicode code point U+2809, and in Braille ASCII with "C".
Representaciones
Sistema
Representación (click value to copy)
N.º
10377
UTF-8
E2 A2 89
UTF-16
28 89
UTF-32
00 00 28 89
URL-Quoted
%E2%A2%89
HTML hex reference
⢉
Mojibake mal de windows-1252
⢉
Codificación: GB18030 (hexadecimales bytes)
81 37 E3 31
RFC 5137
\u'2889'
Bash and Zsh inside echo -e
\u2889
C and C++
\u2889
C#
\u2889
CSS
\002889
Excel
=UNICHAR(10377)
Go
\u2889
JavaScript
\u2889
Modern JavaScript since ES6
\u{2889}
JSON
\u2889
Java
\u2889
Lua
\u{2889}
Matlab
char(10377)
Perl
"\x{2889}"
PHP
\u{2889}
PostgreSQL
U&'\2889'
PowerShell
`u{2889}
Python
\u2889
Ruby
\u{2889}
Rust
\u{2889}
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